Perhaps you should try some spelling variations:
upon conversations » union conversations, open conversations, spoken conversations
christianity upon » christianity among, christianity along, christianity from
beruf history » bern history, berlin history, brief history
bief history » brief history, brief hystory, reef history
20th century » 18th century
ref history » reef history, brief history, etf history
imf history » brief history
21 germany » 11 germany, 2 germany, 20 germany
2.2 20th » 2020 20th, 2023 20th, 2021 20th

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %christianity upon conversations %21 germany %((((ref history) OR (beruf history))) OR (((bief history) OR (imf history)))) %2.2 20th century%22.
• Adding a wildcard symbol may retrieve word variants: %christianity upon conversations %21 germany %((((ref history) or (beruf history))) or (((bief history) or (imf history)))) %2.2 20th century%22*.